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Decision support system

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Decision support system

  1. 1. WELCOME TO OUR PRESENTATION
  2. 2. DECISION SUPPORT SYSTEM DSS
  3. 3. WHAT IS DSS?  A DSS is a computer-based information system that supports business or organizational decision-making activities.  A DSS is a collection of integrated software applications and hardware that form the backbone of an organization’s decision making process and help to make decisions, which may be rapidly changing and not easily specified in advance.
  4. 4. DECISION SUPPORT SYSTEMS 1. Refers to class of system which supports in the process of decision making and does not always give a decision itself. 2. Decision Support Systems supply computerized support for the decision making process. 3. End-users actively work with the data warehouse. 4. End-users apply models to represent, understand, and simplify the decision situation.
  5. 5. DECISION SUPPORT SYSTEMS USES: 1. Medical diagnosis. 2. Business and Management. 3. Agricultural production. 4. Forest management.
  6. 6. TYPES OF DECISION
  7. 7. DECISION MAKING CONCEPTS
  8. 8. COMPONENTS AND STRUCTURE OF DSS
  9. 9. COMPONENTS AND STRUCTURE OF DSS  Data Management  Includes the database(s) containing relevant data for the decision situation  User Interface  Enables the users to communicate with and command the DSS  Model Management  Includes software with financial, statistical, management science, or other quantitative models  Knowledge Management  Provides knowledge for solution of the problem; supports any of the other subsystems or act as an independent component
  10. 10. BENEFITS OF DSS  Improves personal efficiency  Speed up the process of decision making  Increases organizational control  Encourages exploration and discovery on the part of the decision maker  Speeds up problem solving in an organization  Facilitates interpersonal communication  Promotes learning or training  Generates new evidence in support of a decision  Creates a competitive advantage over competition  Reveals new approaches to thinking about the problem space  Helps automate managerial processes  Create Innovative ideas to speed up the performance
  11. 11. GROUP DECISION SUPPORT SYSTEM (GDSS)
  12. 12. GROUP DECISION SUPPORT SYSTEM  An interactive computer-based system used to facilitate the solution of unstructured problems  A set of decision makers working together as a group.  GDSS make meetings more productive by providing tools to facilitate planning, generating, organizing, and evaluating ideas; establishing priorities; and documenting meeting proceedings for others in the firm.  Originally developed for meetings in which all participants are in the same room.
  13. 13. GROUP SYSTEM TOOLS
  14. 14. COMPONENTS OF GDSS  Hardware: Including conference facilities and electronic hardware.  Software tools: Including electronic questionnaires, brainstorming tools, idea organizers, questionnaire tools, voting tools; stakeholder identification and analysis tools; policy formation tools, and group dictionaries.  People: Refers not only to the participants but also to a trained facilitator and often to a staff that supports the hardware and software.
  15. 15. FUNCTIONS OF GDSS APPLICATIONS  Predicting decision outcomes.  Identifying factors and trends.  Developing models of business processes.  Computing optimum mixes.  Facilitating group communication, collaboration and teamwork.  Determining sensitivity of results to changes in decision variables.  Becoming familiar with a problem domain.
  16. 16. GDSS – BUSINESS VALUE  Using GDSS, productivity can increase with increase in number of attendees  GDSS software tools follow structured methods for preserving results of meetings, enabling non-attendees to locate needed info after the meeting  GDSS meetings can increase number of ideas generated and quality of decisions while producing the desired results in fewer meetings  Most useful for tasks involving idea generation, complex problems and large groups
  17. 17. EXECUTIVE DECISION SUPPORT SYSTEM (EDSS)
  18. 18. EDSS  Help senior managers with unstructured problems that occur at the strategic level of the firm.  Combining the internal and external sources.  Helps to monitor :  organizational performance,  Track activities of competitors,  Spot problems,  Identify opportunities  Forecast trends.
  19. 19. EDSS  Benefits o Increases organizational control. o Reveals new approaches to thinking about the problem space. o Encourages exploration and discovery on the part of the decision maker. o Creates a competitive advantage over competition
  20. 20. EDSS CAPABILITIES  Drill down-ability to go to details at several levels  Critical success factors-most critical for success of business  Key performance indicator  Status access-latest data available on Knowledge Process (KP)  Trend analysis-short , medium and long term trend on KP  Adhoc analysis-analysis made anytime upon demand  Exception reporting-report that highlight deviations larger than certain threshold
  21. 21. DSS OBJECTIVES : 1. Increase the effectiveness of the manager's decision-making process. 2. Supports the manager in the decision- making process but does not replace it. 3. Improve the directors effectiveness of decision making.
  22. 22. DSS ADVANTAGES : 1. Time savings 2. Enhance effectiveness 3. Improve interpersonal communication 4. Competitive advantage 5. Cost reduction 6. Increase decision maker satisfaction 7. Promote learning 8. Improves personal efficiency
  23. 23. DSS DISADVANTAGES : 1. Monetary cost. 2. Overemphasize decision making. 3. Assumption of relevance. 4. Transfer of power. 5. Unanticipated effects. 6. Obscuring responsibility. 7. False belief in objectivity. 8. Status reduction. 9. Information overload.
  24. 24. PRESENTED BY Md. Sadnan kabir : 122011562

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